/**
 * File HtmlEditorPane.java
 * ---------------------------------------------------------
 *
 * Copyright (C) 2012 David Bauske (david.bauske@googlemail.com)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * - The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 * - The origin of the software must not be misrepresented.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * TL;DR: As long as you clearly give me credit for this Software, you are free to use as you like, even in commercial software, but don't blame me
 * 		if it breaks something.
 */
package net.cl.util.ui;

import java.awt.Desktop;
import java.io.IOException;
import java.net.URISyntaxException;
import java.net.URL;

import javax.swing.JEditorPane;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;

/**
 * A read-only HTML displaying conponent. Links are clickable and open a browser when clicked on.
 *
 * @author David Bauske
 */
public class HtmlTextPane extends JEditorPane
{
	private static final long	serialVersionUID	= 5972198324204835476L;

	public HtmlTextPane()
	{
		this("");
	}

	/**
	 * Constructs an HtmlTextPane with an initial text.
	 *
	 * @param pText The text to be displayed. If the text does not contain the <tt>&lt;html&gt;</tt> tag,
	 *            It will be added to the string.
	 * @throws NullPointerException if pText is null.
	 */
	public HtmlTextPane(String pText)
	{
		super("text/html", pText);
		this.setEditable(false);
		this.setCaretPosition(0);
		this.addHyperlinkListener(new HyperlinkListener()
		{
			@Override
			public void hyperlinkUpdate(HyperlinkEvent event)
			{
				if(HyperlinkEvent.EventType.ACTIVATED.equals(event.getEventType()))
				{
					// Link was clicked
					if(Desktop.isDesktopSupported())
					{
						try
						{
							URL url = event.getURL();
							if(url != null)
							{
								Desktop.getDesktop().browse(url.toURI());
							}
						}
						catch(IOException e)
						{
							// Nothing we can do about it here....
							e.printStackTrace();
						}
						catch(URISyntaxException e)
						{
							// And neither here....
							e.printStackTrace();
						}
					}
				}
			}
		});
	}
}
